From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-fx0-f43.google.com (mail-fx0-f43.google.com [209.85.161.43]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority" (verified OK)) by huchra.bufferbloat.net (Postfix) with ESMTPS id D6941201146 for ; Fri, 23 Sep 2011 05:50:28 -0700 (PDT) Received: by fxh19 with SMTP id 19so6180632fxh.16 for ; Fri, 23 Sep 2011 05:50:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; bh=OwHOM1QNV8oUrwxVTDolN+RvyMTM1ApcVX/lYEnMfAQ=; b=VPJ9G1VIJBrcXS0mwysqWi2ACG+Z9uMvJ96JaF5F4wVKzJxMFtToGFlf/mW+Y/kFXe K5PQi4BtTrpETJADasrKHdwEUoanYzcB6GNR68SyI8Gh8BP9JRDXQt2HIzOP6AG1xRqE GJ/WnAdFgQZr7KjgGXeJk0sCBGiVodGQL70vk= MIME-Version: 1.0 Received: by 10.223.41.87 with SMTP id n23mr4935269fae.78.1316782226724; Fri, 23 Sep 2011 05:50:26 -0700 (PDT) Received: by 10.223.101.200 with HTTP; Fri, 23 Sep 2011 05:50:26 -0700 (PDT) In-Reply-To: <4E7C7743.3020503@gmail.com> References: <20110921230205.2275820C2E5@snark.thyrsus.com> <20110922021137.GB21302@thyrsus.com> <4E7C4CDE.4060308@gmail.com> <4E7C7743.3020503@gmail.com> Date: Fri, 23 Sep 2011 08:50:26 -0400 Message-ID: Subject: Re: Preliminary results of using GPS to look for clock skew From: Rick To: Jan Ceuleers Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: quoted-printable Cc: "Eric S. Raymond" , bloat-devel@lists.bufferbloat.net X-BeenThere: bloat-devel@lists.bufferbloat.net X-Mailman-Version: 2.1.13 Precedence: list List-Id: "Developers working on AQM, device drivers, and networking stacks" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 23 Sep 2011 12:50:29 -0000 On Fri, Sep 23, 2011 at 8:10 AM, Jan Ceuleers wrot= e: > On 09/23/2011 11:38 AM, Dave Taht wrote: > The cheapest GPS timing receiver, which includes a PPS signal, that I am > aware of is the Garmin GPS18LVC. It requires soldering to a serial port > connector, and also needs a +5VDC power source such as can be obtained fr= om > a USB port, but it is a very capable device. > > Note that it needs to be the LVC variant - other variants of the GPS18 la= ck > the PPS signal. A very nice HOWTO using that part: http://time.qnan.org/ --=20 Religion is regarded by the common people as true, by the wise as false, and by the rulers as useful. =97 Lucius Ann=E6us Seneca. Terrorism, the new religion.